Display screen with an animated graphical user interface



FIG. 1 is a front view of the first image of a display screen with an animated graphical user interface showing our new design;

FIG. 2 is a front view of a second image thereof;

FIG. 3 is a front view of a third image thereof; and,

FIG. 4 is a front view of a fourth image thereof.

The broken line showing of a display screen in all views is for environmental purposes only and forms no part of the claimed design. The broken line showing of the graphic elements and the letter “X” in all views forms no part of the claimed design.

The appearance of the transitional image sequentially transitions between the images shown in FIGS. 1-4. The process or period in which one image transitions to another image forms no part of the claimed design. 

CLAIM The ornamental design for a display screen with an animated graphical user interface, as shown and described. 